Malicious PDF — malware analysis report

Static analysis result for SHA-256 060ddc638dee7828…

MALICIOUS

PDF

47.0 KB Created: 2021-09-12 14:21:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 5414b9a8289424c3793167c88e652deb SHA-1: 9ce06de062880147e1b894484f6d6a9077a482ae SHA-256: 060ddc638dee782821bd9f85178f1d0c781dd3ecc6f483987d56665111d3642f
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links, many pointing to compromised WordPress upload storage and disposable hosting, suggesting it functions as a link farm. The presence of external URIs and the overall structure strongly indicate a phishing or malware distribution attempt, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8164

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://chcial.ru/uplcv?utm_term=gps+watch+price+in+bangladesh PDF link annotation
    • https://movimientofamiliadejesus.com/images/uploaded/file/kubesutibufogiremajabe.pdfIn PDF document text
    • https://bisnismedsos.com/userfiles/file/56064060697.pdfIn PDF document text
    • http://les-dvorik.ru/userfiles/file/jejopinudavusaferowes.pdfIn PDF document text
    • https://vegastel.eu/components/com_mijoshop/opencart/image/data/files/nurosulogazagezurad.pdfIn PDF document text
    • https://erdemlerkoleji.com/resimler/files/47059323391.pdfIn PDF document text
    • http://alpha-cp.com/userfiles/file/puvexib.pdfIn PDF document text
    • http://tvsatkrosno.pl/userfiles/file/sigebepamusalowu.pdfIn PDF document text
    • http://vertex-decor.com/userfiles/file/dugorokabutasovafo.pdfIn PDF document text
    • https://limsurempat.com/contents/files/xivefoferajawel.pdfIn PDF document text
    • http://yokohama-model.com/userfiles/files/65766138602.pdfIn PDF document text
    • https://xeroxexpres.cz/userfiles/file/31334373231.pdfIn PDF document text
    • http://aydinservis.com/ckfinder/userfiles/files/xezamika.pdfIn PDF document text
    • http://prime-standard.com/piceditor/file/kiwodavozepegub.pdfIn PDF document text
    • http://ccadl.com/files/20210909061708.pdfIn PDF document text
    • http://myxroad.net/upload/userfiles/file///11226751837.pdfIn PDF document text
    • http://nhakhoauytinhaiphong.com/upload/files/zidemidexas.pdfIn PDF document text
    • https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/16137df9d71156---61879755468.pdfIn PDF document text
    • http://lynxauto.ru/userfiles/file/turusupoxi.pdfIn PDF document text
    • https://sailstudy.in/ckfinder/userfiles/files/kewudekujorofaw.pdfIn PDF document text
    • http://yalcinsezer.com/upload/ckfinder/files/jurujakugopidonibol.pdfIn PDF document text
    • http://ropesadventure.com/d/files/57066188241.pdfIn PDF document text
    • https://luxartparquet.com/wp-content/plugins/super-forms/uploads/php/files/bb77454c3819fafb45a2e83a4d885440/wejulaxesolegujaxozajopix.pdfIn PDF document text
    • http://er-trans.com/img/produkty/files/zaniwelizevanajede.pdfIn PDF document text
    • http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d5d4cce711---mepevemijemifawemajok.pdfIn PDF document text

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